Wireworking machine



May 12, 1925. 1,537,389 B. L. VAN ORMAN WIREWORKING MACHINE Filed M arch15, 1924 '7 Sheets-Sheet 1 May 12, 1925.

B. L. VAN ORMAN WIREWORKING MACHINE Filed March 13, 1924 '7 Sheets-Sheet2 www.

May 12, 1925.

B. L. VAN ORMAN WIREWORKING MACHINE Filed March 13, 1924 '7 Shetssheet 3O GNN. NNN bhw.

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May 12,l 1925. 1,537,389

B. L.. VAN ORMAN WIREWORKING MACHINE:l

Filed March 15. 1924 '7 Sheets-.Sheet 4 i INVENTOR 5er?`L A. Vanr/mnATTORNEYS May 12,1925.

B. L. VAN RMAN WIREWORKING MACHINE Filed March 13, 1924 '7 Sheets-Sheet5 May 12,l 1925.

B. L. VAN ORMAN WIREWORKING MACHINE '7 Shets-Sheet 6 Filed March 13.1924 INVENTOR Sirf L. l/anrman 6 a? ffm 921W? ATTORNEYS May 12, 1925.1,537,3 89f v B. L. VAN ORMAN wIREwoRxme MACHINE Filed March 13, 1924 l'7 sheets-s116111 7' Patented May 12, 1925.

UNITED STATES 1,537,389 .PATENT OFFICE.

BERT L. VAN ORMAN, OF DETROIT, MICIGAN, ASSIGNOR TO L. A. YOUNGINDUSTRIES, INC., OF DETROIT, MICHIGAN.

WIREWORKING MACHINE.

Application filed March 13, 1924.

T all whom t may concern.'

Be it known that I, BERT L. VAN ORMAN, a citizen of the United States,residing at Detroit, county of Wayne, State of Michigan, have inventedcertain new and useful Improvements in l/Vireworking Machines, of whichthe following is a specification.

This invention relates to improvements in wire working machines.

In the use of coiled tension springs, it is necessary that means beprovided for fastening the ends of the spring to the machine parts whichare to be actuated by t-he spring. A common method is to form a suitableeye or hook at each end from a portion of the spring wire which must beprovided for in ceiling the spring by leaving uncoiled stock which is adisadvantage in the ceiling operations or the spring must be partiallyuncoiled.

This invention relates to a machine for uncoiling or straightening aportion of the coils of a coiled spring. One of the main objects beingto providel a.. machine capable of accomplishing this result with aminimum amount of manual assistance.

A seco-nd object is to provide means of readily adjusting the machine tosprings of different size, and for straightening dierent lengths ofwire.

Further objects, and objects relating to structural details, willdefinitely appear from the detailed description to follow.

I accomplish the obje-cts of my invention by the devices and meansdescribed in the following specification. The invention is clearlydefined and pointed out in the claims.

A structure which is a preferred embodiment of my invent-ion is clearlyillustrated in the accompanying drawing, forming a part of thisapplication, in which:

Fig. I, Sheet l, is a fragmentary view in perspective of a machineembodying the features of my invention.

Fig. II, Sheet 2, is a partial plan view thereof.

Fig. III, Sheet 3, is a fragmentary View in elevation taken from thefront of Fig. II.

Fig. IV, Sheet 4, is an enlarged detail view in section on a linecorresponding to line 4-4 of Fig. II.

Fig. V, Sheet 5, is enlarged fragmentary detail view in section' onaline' corresponding to line 5-5 of Fig. III. ,y

Fig: VI, Sheet 6, is an enlarged detail Serial Ne. 698,873.

view in section on a line corresponding to line 6 6 of Fig. III.

Fig. VII, Sheet 2, is an enlarged fragmentary view in section on alinecorresponding to line 7-7 of Fig. II, illustrating detail-s of a springturntable or conveyor.

Fig. VIII, Sheet 6, is an enlarged detail view in section on a linecorresponding to line 8-8 of Fig. VI, illustrating details of a springturntable or conveyor actuating lever.

Fig. IX, Sheet 6, is an enlarged detail view in section on al linecorresponding to line 9-9 of Fig. VI, showing further spring turntableor conveyor details.

Fig. X, Sheet 6, is a detail view in section on a line corresponding toline 10-10 of Fig. IX.

Fig. XI, Sheet 3, is an enlarged view in section on a line correspondingto line Il ll of Fig. V, illustrating details of a spring conveyorbrake.

XII. Sheet 7, is an enlarged detail view in section on a linecorresponding to line 12-12 of Fig. V, showing the wire pullingmechanism engaging the lower coil of a spring.

Fig. XIII, Sheet 7, is a detail view in elevation of a spring holder pinwith a coil spring in elevated position thereon.

Fig. XIV, Sheet' 3, is a detail enlarged View in section on a linecorresponding to line 14-14 of Fig. III, illustrating details of aspring retainer.

Fig. XV, Sheet 3, is a` detail View in section on a :line correspondingto line 15-15 of F ig. III, showing further spring retainer details.

Fig. XVI, Sheet 4, is a detail view in section on a line correspondingto line 16-16 of Fig. IV, illustrating details of the wire puller slide.

Fig. XVII, Sheet 4, is a detail view in section on ya line correspondingto line 17-17 of IIV, illustrating details of a wire puller slide brake.4

Fig. XVIII, Sheet 4, isa detail View in section on a line correspondingto line 18-18 of Fig. IV, illustrating details of a wire puller controlmember.- Fig. XIX, Sheet 6, is an enlarged detail view in section on alinev corresponding to` line 19e-'19l of Fig.- II, illustrating wirepuller' drivin-ganci contini details. Fig. XX, Sheet 7,- is a Viewsimilar to Fig. XII, showing the parts in actuated position.

Fig. XXI, Sheet 2, is a. View in section on a line corresponding to line21-21 of Fig. XX, showing further det-ails of the wire puller orstraightener.

Fig. XXII, Sheet- 4, is a view in section on a line corresponding toline 22-22 of Fig. VI, illustrating details 'of an adjustable cammember.

Fig. XXIII, Sheet ,Yi's an enlarged view in section on a linecorresponding to line 234-23 of Fig. V, showing details ot wire cut-otl1inechanisifn. 4

In the drawing, similar reference characters refer to similar partsthroughout the several views, the sectional views being taken looking inthe direction indicated by the little arrows at the ends of the sectionlines.

The machine is driven by any suitable ineans as the belt 24 and pulley25, the latter being carriedby a. shaft 25k which also 'carries a worni26 engaging a worni wheel 27-see Figs. I, II, III and IV.A Theworinwheel 27 is secured to a vertical shaft 28 which imparts iiioti'on tovarious mechanisms of the machinesee Fig. IV.

The work, the coiled spring 30, is successivelyinoved to the differentpositions for the several operations by a turntable or conveyor 31rotatable on a post 32 which is secure/d to the inain ltraine S3-seeFigs. I.v

II, III and V. The turntable is interinittently rotated by a ratchetlever 34 which is pivoted on the post 32 and which carries pawl 35engaging teeth 36 in 'an annular rack 29 on the under side of theturntablesee Figs. VII to Xy inclusive.

As a preferred torni ot construction, the pawl 85 is contained in arecess 37 and yieldingly supported by a spring` 88, the shank 35 ot thepawl being squared to prevent the pawl i'roin rotating outot correctposition-see Figs. IX and X. The ratchet lever 84 is connected by anadjustable link 89 to a cani lever 40 which is pivoted at 4l and engagedby a cani 42 on the shaft 28. The lever 40 is held in contact with thecani 42 by a spring 43 which is supported by a reciprocatable springkeeper 44-see Figs. III and IV. j

The turntable 3l is advanced one step with each revolution of the shaft28 and between movements is held in correct position by a pivotedlocking dog 'or detent 45 which successively engages lnotches 46V in a`flange 47 'of the table l-see Figs. III and VII. Y The d'etent ispivoted at 48 and con: nected by an adjustable link 49 to a bell crankI50 which carries a roller 5l engaged by Ya cain 52 on the shaft 28seeFig. IV. The roller is yieldingly held in contact 'with the c aIn by aspring 53 bearing against one end of the detent 45. fr brake 54 bearingagainst the lower surface of the turntable otterssuflicient resistanceto n'iovenient ot the table to prevent its overrunning the desiredposition-see Figs. III and V. This brake is yieldingly held in contactvwith the table 3l by a spring 55 contained in the cylindrical uprightsupporting ineinber 5- see Fig. XI.

The turntable 3l carries a series or' equally spaced spring holder pins57; The operator places a coiled spring 30 upon one ot the pins when thelatter is in the position 57u-4 see Fig. V. The next nioveinent ot theturntable carries the Vspring to the position 57". A wire gripper 59 nowadvances towardthe spring 3() and the hooked pivoted jaw 60A of thev"gripper passes underneath the lower coil of the spring-see Fig. 'XIIEach of the pins 57 has a longitudinal groove' 6I registering with anotch 62 in the periphery of the' work table or conveyor 8l to provideclearance ttor entrance of the jaw (il). As a preferred nieans otsecuring the work holding pins 57 to the table, each'pin terminates inan offset screwl threaded extension 6301i which is threaded a nut 64,the latter having a spool or spacer portion toallow clearance for thejaw 60. A segmental flange 66 on the pin provides a seat on lwhich thespring 30 rests-see Fig. XIV, the end o1nA the `flangeV providingl 'astop 67-se`e Fig. XIII-against which the 'end 68 otth'e bottoni coil ofthe spring is placed by the operator to insure correct positioning ofthe spring on the pin and engagement of the jaws of the gripper 59 atthe correct point ci the bottoni spring coil.

IVhen in position 57h, the spring 30 is yieldingly retained in place onthe pin 57 by a plate 7() under which the spring 8O passes as itinov'e's to this p'olsitions'ee Figs. I, III and The plate 70 issupported by an arin 7l on a standard 72 which is vertically adjustablein the sleeve-like bracket 7? to chanoe the height of the plate 70 torsprings of different lengths-#see Fig. XV. The plate 70 is hinged to abracket 74 on the arm 7l and urged downward by a spring 75, anadjustable stop 7 6 supporting the plate 7 O when the latter is not inengagement with one oit the springs 30. As therjaw passes underneath thespring 80, the latter is lifted slightly from its seat on the pin 57,the plate 7 O yielding to allow the spring to rise. INhen the gripper 59has reached its Work engaging position, the plate 70 reseats the spring30 on the pin 57 thereby placing the lower coil 77 ot the spring inrange of the hook 78 on the jaw (iO-see Fig.

XII.

The gripper 59 is mounted on a carriage 8O reciprocable' in the channel'ways 8l of the longitudinal guide Inenibers 82-"see Figs. IV and XVI.The gripper carriage 80 is actuated with aiintermittent movement which Iwill new describe.

A draw bar 83 is disposed longitudinallv ot the carriage and ins a lostmotion c necticn thereto. the car therein engaged by the ting a limitedrelative ient these parts or a lost m tion connection, 'lhc actuating ordriving member connected to this bar 8B by a et oined Yfriction andpositive driving means, as will be described.

The carriage is provided with a brake or friction means to insure thislost i'notion action. A brake 86 is i'nounted upon the bracket Si'carried by the carriage. the brake coacting with a stationary armdisposed between the brake shoes 89 and 90 on the bracket 87. Thedesired amount oilE friction is provided by compression springs 91carried by the spring keepers 92 having adjusting nuts 9f'3-see Figs. IVand XVII. The actuating member 95 is reciprocatingly mounted on theguide ways 82, the member 95 being connected to the crank pin 97 on thecam 88 by means ot the adjusting link or pitnian 98 see Figs. IV and VI.

For convenience in assembling` and to compensate for wear the ways S2are adjustably supported by means of the adjusting screws 94.- and theclamping screws 96 engaging elongated bolt holes 82-see Fig. XVI.

'Ihe driving connection trom the actuating member to the carriage drawbar 83 whereby the constant movement ot the actuating member is changedinto an intermittent movement for the carriage com prises a combinedfriction and positive driving or connectingr clutch 100. This clutchconsists of a bar 99 on the actuating member. friction slice 101 rigidlysecured to the bar S3 and underlying the bar 99 actuating the cross headand an upper shoe d which is vertically reciprocable on bolts 103 in theshoe 101 and yieldingly held against the top surface of the bar 99 bythe springs 1041-. means being provided for regulating the tension ofthese springs.

The slices 101 and 102 are provided with liacings 105 of frictionmaterial which grip the bar 99 with suiiicient `friction to cause thecarriage 83 to advance with the actuating member until the shoe 101engages the stop 10G-see Figs. II and XIX. The stop 106 is moved intoand out of range ot the shoe 101 by means of a cam lever 10iactuated bya cam 10S on the shaft 28,-see Fig. XIX. The roller 109 on the lever 107is held yieldingly against the cam 98 by a spring 110. To preventbreakage of the parts the lever 107 is yieldingly held in engagementwith its pivot 111 by the spring 112, the lever being provided with anotchlike opening 113 engaging the pivot 111,

thereby permitting the lever to swing away from its pivot in case theclutch 100 should become displaced or the parts should not be operatedin proper order, thereby interrupting the normal movement ot the stop10o-see Figs. II and XIX.

After the clutch shoe has engaged the stop 106 the actuating member 95continues to advance the bar sliding through the control member untilthe clutch pawl 115 drops into the hole 116 in the bar 99. The actuationof the parts is timed so that at this instant the stop 106 is retractedallowing the carriage 83 to advance with the actuating member by whichit is now positively driven. These parts continue to advance toe'etheruntil the gripper is in position to engage the lower coil of the spring30.

The adjustment ofthe connecting rod 98 provides means for accuratelydetermining this position and means for changing' the position forsprings of different diameters.

The movable jaw of the gripper is pivotee at 11T- see Fig. XII, to thelevers 18 on the gripper 59, this gripper having a lined jaw 119'adaptedto coact with nthe pivotedjaw 60. In addition to its supporting pivot117 the 50 is yieldingly suspended by a line 120 carried by the bladespring 121. The lower ends of the levers 118 are connected by a link 122to the bar 83.

I'Vhen the actuating` member 95 advances on its forward stroke the bar83 owing to' the lost motion connection to the carriage as described,swings the lever 118 forwardly opening the jaw 60. The carriage is thenmoved forwardly with the bar 83, the jaw being held Vopen until the endof the forward stroke is reached-see Figs. 'IV and XII. On the returnstroke of the actuating cross head the bar 83 is actuated independentlyof the carriage through the lost motion connection described and thiscloses the jaw gripping the wire, the carriage being held in its forwardposition bythe brake S6. The carriage is then actuated.

As the gripper 59 moves away from the spring holder 5?' with the wire 69in its grasp the spring is uncoiled, the uncoiled portion being pulledaway from the spring, as shown in Figs. XX and XXI. As the wire ispulled out or the spring uncoiled the wire is drawn against thestraightening pin 123 which removes the bends or straightens the wire,leaving the extended or pulled out portion straight with theeXception'of the hooked end portion 124 held by the gripper jaws.

The pin 28 is supported by a rod 125 which is longitudinally adjustablein the brackets 126 so that the position of the straightening pin may beadjusted for springs of different diameterswsee Figs. V and VI. Thelength or amount' of wire pulled 'from the coil is determined by the Atsubstantially the same time that the Vmember 101 contacts or comes torest against the stops 128, the payvl 115 is lifted by the cam portion135 of the stop rod leaving only the frictional clutch connection forthe actuating` member and the carriage so 'that the actuating member maycomplete its stroke Without further movement of the carriage and theja-W is opened Jto-release the Work. rlhis also permits utilization ofmore or less of the stroke of the actuating member as may be requiredfor the particular Work.

The .Wire is removed from the gripper by an ejector 136 carried by therocker arm 137 pivoted at 13S-see Figs. II, V, VI and XII. This rockerarm is actuated by the cam arm 139 on the vertical shaft 140see Figs.XII and XIX. The shaft 140 is provided With an arm 141 connected by theadjustable link 142 to a bell crank lever 143 vvhich is in turnconnected to the rocker arm 137 by the adjustable link 144. The ejectoris returned to its initial position by Vthe spring 145. The cam arm 139lies in the path of a cam member 146 carried by the cams 42 and 52, seeFigs. IV, V and VI. o

In the structure illustrated the cam 146 is pivotally mounted on a pin147 which eX- tends through the cams 42 and 52, see Fig. XXII. The pinprovides means by which the cams 42 and 108 are driven from the cam 52,the latter only being directly secured to the shaft 28. The cam 146 maybe turned on the pin 147 and rheld in itsv adjusted position by means ofthe screw 148, this adjustment providing .means for changing Vthe amountof movement of the ejector 136. The ejector is shown in its actuatedposition by dotted lines in Fig. XXI.

After the vvire b as been released or ejected from the gripper the Worktable carries another spring into the position 57b and carries thepartially uncoiled spring to the position 57c Where the hook orunstraightened end portion 124 is cut off. As the spring is carried fromthe position 57b the extending end 69 is drawn around the straighteningpin 123 and swung back to the position shown in II. The spring neXtcomes Vin contact With the end 149 of a positioning lever 150 Which ispivoted at 151 and yield- Yingly held against the stop pin 152 by aspring 153. The bracket 154 which carries the lever 150 is secured tothe standard 155 by the screw 156. By loosening the screw the bracketmay be rotated as desired to adjust the position of the lever relativeto the Work table.` l c As the spring` is carried forward to position57'c the end of the lever 149 is pushed ahead, the other end 157 of thelever is swung around to the position shown by dotted lines in Fig. Vcarrying lthe extending or unco-iled end of the spring around With it.When the Work has passed the end 149 of the lever, the spring 153returns the lever to its initial position. After passing the positioninglever 150 the Work 30 engages the face of a spring rotating shoe 158pivoted on the bracket 154 at 159 and yieldingly held toward the tableby the spring 160, see Fig. V..

rIhe shoe 158 has a facing 161 of frictional material with which thespring engages causing the spring to rotate on its supporting pin,thereby swinging the extended end thereof into operative relation to thecut-olirz mechanism 162. rIhe stop 163 supports the member 158 in itsinitial position, see Fig. II.

The cut-off mechanism 162 consists of a bracket member 165 carrying theshear block 166. A cutter 167 is pivoted to the bracket 165 and carriesthe adjustable plate 168.V

The plate 168 is adjustably secured to the cutter by Vmeans of the setscrew 170 and the adjusting screvv 169, see Figs.l I and XXIII. 'Ihespring rotating shoe 158 swings the projecting or extended end 69 of thespring over the shear block and underneath the cutter. rI`he cutter'isactuated bythe lever 172 on the camy 108, see Fig. V, the cam leverengaging the roller 17 3 of a lever 174 on the rock shaft 175. The rockshaft has an arm 176 connected by the adjustable link 177 to the cutter.

When the cutter is'actuated by the mechanism described the blade movesdownvvardly across the face of theshear block thereby cuttin off thehooked or unstraightened portion of the spring. rIhe roller'17f3 is heldin contact with the cam 108 by means of the springs 187. rIhe supportingbracket for the cutter is slidably supported in the dove-tailed way 180in the main'. frame 33 providing means for adjusting the position of thecut-off for leaving any desired length of Wire extending from thespring, the bracket being secured in its ad-V justed position by meansof the set screw 181. 'Ihe arm 176 is splined to the rockshaft 175 sothat itV may be moyed longitudinally thereon to aline with theadjustmentof the cutter.

After the Wire has been cut off the Work is then carried to the,posit-ion 57 l Where it is engaged by the spring ejector. Asatisfactory type of ejector consists of the rotating brush 183 which isdriven at a speed suflicient to lift theY spring from the pin throwingit against the detlector 184, see Figs. I, II and III. This defiector isadjustably supported on a bracket 185 and guides the spring to itsreceptacle. i

In the embodiment illustrated the ejector brush is driven by a belt 186connecting the pulley 187 on the shaft 188 of the brush with the mainpulley 25. The empty holder is carried by the next actuation of the worktable to the position 57a, having iinished a complete cycle of movementof the Work table. The several operations, placing the spring upon aholder, uncoiling, vcutting od and ejecting, are carried onsimultaneously on different springs. All of the mechanisms except theejector 183 are driven by the shaft 28 so that the different parts arecorrectly timed and their timed relation is easily maintained.

I have illustrated and described an embodiment of my invention Which Ihave found very satisfactory. I have not attempted to illustrate ordescribe certain modifications and adaptations Which I contemplate as Ibelieve the disclosure made Will enable those skilled in the art toembody or adapt my improvements as may be desired.

Having thus described my invention what I claim as nerf and desire tosecure by Letters Patent is:

1. In a structure of the class described, the combination of a Workholder, a reciprocatingly mounted carriage provided With a fixed jaivand a pivoted jaiv, a brake for 't .onally retarding the movement ofsaid carriage, means for actuating said carriage and said jaivcomprising a draiv bar having a lost motion connection to said carriageand operatively connected to said pivoted j avv so that the aw is openedand closed by the independent movement of said draw bar at the ends ofthe stroke of the carriage, a reciprocating actuating member, a drivingconnection for said actuating member and draw bar comprising a clutchbar on said driving member having a hole therein, a friction shoe onsaid draw b ar coacting with said clutch bar providing a friction driveconnection, a driving pawl on said dran7 bar adapted to engage said holein said clutch bar providing a positive drive connection, a stop forhoiding said carriage on its forward stroke to permit engagement of saidpaivl, means for retracting said stop timed with the engageinent of saiddriving paivl, a cam for disengaging said driving paivl on the returnstroke of the carriage, and an adjustable return stop for said carriagepositioned to engage after said pavvl has been disengaged.

2. In a structure of the class describet, the combination of a Workholder, a reciprocatingly mounted carriage provided With a fixed jaw anda pivoted javv, means for actuating said carriage and said jawcomprising a draw bar having a lost motion connection to said carriageand operatively connected to said pivoted jaw so that the jaW is openedand closed by the independent movement of said draw bar at the ends ofthe stroke of the carriage, a reciprocating actuating member, a drivingconnection for said actuating member and draw bar comprising' a clutchbar on said drivingmember having a hole therein, a friction shoe on saiddraw bar coacting with said clutch bar providing a friction driveconnection, a driving` pawl on said draw bar adapted to engage said holein said clutch bar providing a positive drive connection, a stop forholding said carriage on its forward stroke to permit engagement of saidpaivl, means for retracting sait stop timed with the engagement of saiddriving pawl, a cam for disengaging said driving paivl on the returnstroke of the carriage, and an adjustable return stop for said carriagepositioned to engage after said paw] has been disengaged.

3. In a structure of the class described, the combination of a Workholder, a reciprocatingly mounted carriage provided with a Work engagingjavv, a brake for frictionally retarding the movement of said carriage,means for actuatingsaid carriage and jan7 comprising a carriage draw barhaving a lost motion connection to said carriage and an operativeconnection to said javv, a reciprocating actuating member, a combinedfriction and driving connection for said actuating member and draiv barcomprising a` clutch bar on said driving member having a hole therein, afriction shoe on said dravv bar coacting with said clutch bar providinga friction drive connection, a driving pawl on said draw bar adapted toengage said hole in said clutch bar providing a positive driveconnection, a stop for holding said carriage on its forward stroke topermit engagement of said pawl, means for retracting said stop timedwith the engagement of said driving paivl, a cam for disengaging saiddriving paivl on the return stroke of the carriage, and a return stopfor said carriage positioned to engage after said pawl has beendisengaged.

4t. In a structure of the class described, the combination of a Workholder, a reciprocatingly mounted carriage provided with a Work engagingjaw, means for actuating said carriage and said auf comprising' acarriage draw bar having a. lost motion connec. tion to said carriageand an operative connection to said jaw, a reciprocating actuatingmember, a combined friction and driv ing connection for said actuatingmember and draw bar lcomprising a clutch bar on said driving memberhaving a hole therein, a friction shoe on said draw bar coacting withsaid clutch bar providing a friction drive connection, a driving pawl onsaid draw bar adapted to engage said hole in saidy clutch bar providinga positive drive connection7 a stop for holding said carriage on itsforward stroke to permit engagement Vof' lsaid paw'l, means forretracting said stop timed with the engagement of said driving pafwl;`and a cam for disengaging said driving pawl on the return stroke of thecarriage'.

5; in a structure of the class described, the

' combination of awork holder, a reciprocatends of the stroke of thecarriage7 a reciproeating actuating memberT a driving connection' forsaid actuating member and draw bar comprising a friction shoe providinga friction drive and a pawl providing when engaged a positive drive;means for tempo-v rarily holding saidl carriage onits forward stroke topermit engagement of said pawl, means for disengagingsaid pawl duringthe return strokeo'f the carriage, and a carriage return stop positionedto engageV after said pawl has been disengaged.

' 6. In a structure ofthe class described, the combination a 'workholder7 a reciprocatingl'y mounted carriage pro-vided with a I fixed'jawand a movable jaw, means for actuating said carriage and said jawcomprising a draw barv having 'a lost motion connection to said carriageand operatively conneafted to saidy pivotedl'jawso that the jaw is.opened and closed by the independent movement of' said draw bar at theends ofthe stroke ofthe carriage, a reciprocating actuating member, adriving' connection for said actuating member' and draw bar comprisingfriction shoe providing a friction drive and a p'awlprovding whenengaged a posi,- tive drive, lmeans for temporarily holding saidcarriage on its forward stroke to permit engagement of said pawh andmeans for disengaging said paw'l during the return stroke ofA thecarriage.

7. In astructnre of the class described, the combination of a.workholder, a reciprocatingly mounted carriage provided with a fixed jawand a` movable jaw, means for frictionally retarding the movement ofsaid carriage, and means for actuating said carriageand saidjawcomprising a draw bar having a lost motion connection to said carriageand operatively connected to said pivoted so that the jaw` is opened andclosed by the. independent movement of said draw bar at the ends o-f thestroke of the carriage. 'Si In astr'ucture of the class described`tastes@ the Combination Of a Work helder, a fsf/irre.- Catngly 11.10work engaging aw, a brake for friction'ally retarding said carriage,means for4 actuating Said Carriage and iawcompl'sils a Carries@ draw barhaving a lost motion connection to said carriage and an operativeconnection to jaw lwhereby the jaw' is opened and' closedv by themovement of said draw bar independent of the carriage@ a combinedfriction and positive driving connection for Said actuating member t@Said draw bewereprising'a frictionshoe and apa-wl means for 'teinrerariyholding Said Carriage @e its forward stroke to permit the engagement ofSaid' parl, mme' for dseasaees Said pawl during the return stroke of thecarfa-se, Garliase-1'leiurnst0r positioned to engage after the pawldiseneased- In a structnre of the class described, thel combination ofawork holder,r a recipfocathely maimed 'carriage provided with a workengaging jaw, means for actuating' said carriage and jaw comprising acar `ge draw bar having a lost motion connection to Said Carries@ andan( Operative Comedian to said jaw whereby the jaw isv opened closed bythe movement of said draw bar independent of the carriage, a combinedfriction and positive driving connection for said actuating member tosaid draw bar comprising a friction shoe and a pawl means fortemporarily holding said carriage on its forward stroke to permit theengagement of said piawl, and means for disengaging said pawl during thereturn stroke of the carriage.

l0. In a structure ofthe class described, the combination of a workholder, a reciprocatingly mounted carriage provided with work engagingjaws, mea-ns for frictiona-lly retarding the movement of said carriage,means for actuating said carriage including a friction and a positivedriving means, and means for controlling said positive driving meanswhereby it is engaged and disengaged at point intermediate the stroke ofthe carriage said driving means having a lost mo- 'tion connection tosaid carriage and being operatively connected to said jaw whereby thejaws are actuated to engage and release the work.

l1.. In a structure of the class described, the combination of a workholder, a reciprocatingly mounted carriage provided with work engagingjaws, means for actuat i said carriage including a friction and a poshtive driving means, and means for controlling said positive drivingmeans whereby it is engaged and disengaged at a point intermediate thestroke of the carriage.

i2. In a structure of theclass described, the combination of a worktable provided with a pin-like upright Work holder-adapted ted carriageprovided with a.

to receive a coiled spring, said work holder being provided with a stopshoulder adapted to coact with the end of the bottom coil of a spring,said table and work holder being notched to permit the entrance of awork engaging jaw below the bottom coil of the spring, a reciprocatingcarriage provided with a. forwardly facing fixed jaw, a coactingupwardly facing hooked jaw, means for adjustably supporting said hookedcomprising a lever pivotally mountedA on said carriage and having saidhooked jaw pivotally mounted thereon,y a link engaging said hooked jawin front of its pivot, a supporting spring for said link, and a jawactuating member having a lost motion connection to said carriage and alink connection to said lever.

13. In a structure of the class described, the combination of a workholder adapted to receive a coiled spring, a reciprocating carriageprovided with a forwardlyv facing fixed jaw, a coacting upwardly facinghooked jaw, means for supporting said hooked jaw comprising a leverpivotally mounted on said carriage and having said hooked jaw pivotallymounted thereon, a link engaging said hooked jaw in front of its pivot,a supporting spring for said link,

Vand a jaw actuating member having a lost motion connection to saidcarriage and a link connection to said lever.

14. In a structure of the class described, the combination of a pin-likework holder adapted to receive a coiled spring and provided with a workpositioning stop with which the end of the bottom coil of the spring maybe engaged, a reciprocating carriage provided with work engaging jawsadapted to engage the bottom coil of the spring adjacent its end, meansfor reciproeating said carriage and automatically opening and closingsaid jaws to engage and release the work, a straightening pin disposedin spaced relation to said work holder and so that the wire is drawnagainst the same as it is uncoiled, and means for lifting the work fromthe jaws arranged to engage the uncoiled end thereof.

15. In a structure of the class described, the combination of a pin-likework holder adapted to receive a coiled spring and provided with a workpositioning stop with which the end of the bottom coil of the spring maybe engaged, a reciprocating carriage! provided with work engaging jawsadapted to engage the bottom coil of the spring adjacent its end, meansfor reciprocating said carriage and automatically opening and closingsaid jaws to engage and release the work, and a straightening pindisposed in spaced relation to said work holder and so that the wire isdrawn against the same as it is uncoiled.

16. In a structure of the class described,

the combination of a pin-like work holder adapted to receive a coiledspring and provided with a work positioning stop with which the end ofthe bottom coil of the spring may be engaged, a reciprocating carriageprovided with work engaging jaws adapted to engage the bottom coil ofthe spring adjacent its end, means for reciprocating said carriage andautomatically opening and closing said aws to engage and release thework, and means for lifting the work from the jaws arranged to engagethe uncoiled end thereof.

17. In a structure of the class described, the combination of a pin-likework holder adapted to receive a coiled spring and provided with a workpositioning stop with which the end of the bottom coil of the spring maybe engaged, a reciprocating carriage provided with work engaging jawsadapted to engage the bottom coil of the spring adjacent its end, andmeans for reciprocating said carriage and automatically opening andclosing said jaws to engage and release the work. Y

18. In a structure of the class described, the combination of a workholder adapted to rotatably support a coiled spring, a re ciprocatingcarriage provided with work engaging jaws adapted to engage the bottomcoil of a spring supported on said work holder, means for reciprocatingsaid carriage and automatically opening and closing said jaws to engageand release the work,- a straightening pin disposed in spaced relationto said work holder and so that the wire is drawn against the same as itis uncoiled, and means for lifting the work from the jaws arranged toengage the uncoiled end thereof.

19. In structure of the class described,

the combination of a work holder adapted to rotatably support a coiledspring, a reciprocating carriage provided with work` engaging jawsadapted to engage the bottom coil of a spring supported on said workholder, means for reciprocating said carriage and automatically openingand closing said jaws to engage and release the work, and astraightening pin disposed in spaced relation to said work holder and sothat the wire is drawn against the same as it is uncoiled.

20. In a structure of the class described, the combination of a workholder adapted to rotatably support a coiled spring, a reciprocatingcarriage provided with work engaging jaws adapted to engage the bottomcoil of a spring` supported on said work holder, means for reciprocatingsaid car-A riage and automatically opening and closing said jaws toengage and release the work, and a straightening pin disposed in spacedrelation to said work holderfand so that the wire is drawn against thesame as it is unably supported.

2l. In a structure of the class described,

the combination of a work holder adapted` to rotatably support a coiledspring, a reciprocating carriage provided with work engaging aws adaptedto engage the bottom coil of a spring supported on said work holder, andmeans Afor reciprocating said carriage and automatically opening andclosing said liaws to engage and release the. work.

22. In ra structure of the class described, the combination of arotatably mounted work table provided with a plurality of uprightpin-like work holders adapted to receive coiled springs, means foractuating said table with a step by step movement, 'a

gripper carriage reciprocating radially of said "table and adapted togrip the bottom coil of a spring on' said work holder, and astraightening pin across which the uncoiled wire is drawn on theretracting movement of the gripper carriage.

23. In a structure of the class described, the combination ofV arotatably mounted work table providedv with a plurality of uprightpin-like work holders adapted to receiveA coiled springs, means foractuating said table with a step by step movement, and a grippercarriage reciprocating radially of said table and adapted to grip thebottom coil of a spring on said work holder.

24. In a structure of the class described,

'the combination of a rotatable work table,

means fordriving said table with a step by step movement, a plurality ofuniformly spaced work and. adapted to receive and support coiled springsin an upright position, a reciproeating gripper carriage adapted toengage the bottom coil of the spring whereby the spring is partiallyuncoiled on the retracting movement of the carriage, a yieldinglymounted plate adapted to engage the upper endy of the spring, when inoperative relation to said carriage., and ,means for disengaging thework from the gripper adapted to lift thev work against the saidyielding plate.

25. In. a structure of the class described, the combination of arotatable work table, mean-s, for driving said table with'a step by stepmovement, a plurality of uniformly spaced work holders mounted on saidtable and adapted to receive and support coiled springs in an uprightposition, a reciprocatingv gripper carriageadapted to engage the bottomcoil of the spring whereby the spring Y is partially uncoiled on the reracting movement of thel carriage, and a yieldingly mounted plateadapted to engage the upper end of the spring when in operative relationto said carriage.

26. In ar structureoi1 the class described, the combination of arotatably mounted holders mounted on said table tratase carriagereciprocating radially of said table l and adapted to grip the bottomcoils oi the springs, a straightening pin across which the uncoiled wireis drawn onrthe retracting movement oi the gripper, an ejector forreleasing the work from the gripper, a cutter, a work positioning leveradapted to engage the work as the table is rotated to swing the uncoiledend thereof inwardly,y a` work positioning shoe disposed at the rear ofsaid lever to engage the work" and rotate. the same upon the workholders delivering the uncoiled ends thereoto the cutter, and means foractuating ,said table, gripper carriage and cutter in synchronism.

27. In a structure oi the class described, the combination of arotatably mounted work table provided with a plurality of uprightVpin-like work holders adapted to rotatably support coiled springs, agripper carriage reciprocating radially of said table and adapted togrip the bottom coils of the springs, a cutter, a work positioning leveradapted to engage the work as the table rotated to swing the uncoiledend thereof inwardly, a work positioning shoe disposed at the rear ofsaid lever to engage the work and rotate the same upon the work holdersdelivering the uncoiled ends thereofY tol the cutter, and means foractuating said table, gripper carriage and cutter in synchronism.

28.' In a structure ot the class described, the combination of arotatably 'mounted work table provided with a. plurality of'upright workholders adapted to rotatably support coiled' springs, a gripper carriagereciprocating radially of said table, and adapted to grip the bottomcoils of the springs supported on said work holder, a`

cutter, a work positioning lever adapted to engage the work as the tableis rotated to swing the uncoiled end thereof'inwardly, a workpositioning shoe disposed at the rear of said lever toengage the workand rotate the same upon the work holders deliveringy the uncoiled endsthereof to the cutter, and means for. actuating said table, grippercarriage and cutter in synchronism.

29.l In a structure of the class described, the combination of arotatably mounted work table provided with a plurality of upright workholders adapted to rotatably support coiled springs, a gripper. carriagereciprocating radially of said table and adapted to grip the bottomrcoils` o' the, springs supported on said work holder, a cutter, a workpositioning shoe disposed to engage the work and rotate the same uponthe` work holders delivering the uncoiled ends thereof to the cutter,and means for actuating said table, gripper carriageand cutter insynchronism.v

30. ln a structure ot the class described, the combination of arotatably mounted work table provided with a plurality of upright workholders adapted to rotatably support coiled springs, a reciprocatinggripper carriage adapted to grip the bottom coils otl the springs onsaid work holders, and a work positioning' lever adapted to engage thework as the table is rotated to swing the uncoiled end thereof inwardly.

3l. ln a structure of the class described, the combination of arotatably 'mounted work table provided with a plurality of uprightpin-like work holders adapted to receive coiled springs, means foractuating said table with a step by step movement, a work grippercarriage reciprocating radially of said table and adapted to grip thebottom coils adjacent their ends, a straightening pin across which theuncoiled wire is drawn on the retracting movement of the gripper, anejector for releasing the work from the gripper, a cutter, means forrotating the work upon the work holder as lthe table is rotated to swingthe uncoiled end thereof into the cutter, and means for actuating saidtable, gripper carriage and cutter in synchronism.

32. ln a structure ot the class described, the combination of arotatably mounted work table provided with al plurality of uprightpin-like work holders adapted to receive coiled springs, means 'foractuating said table with a step by step movement, a. work grippercarriage reciprocating radially of said table and adapted to grip thebottom coils adjacent their ends, a cutter, means 'for rotating the workupon the work holder the table is rotated to swing the uncoiled endthereof into the cutter, and means for actuating said table, grippercarriage and cutter in synchronism.

ln a structure of the class described, the combination oit a rotatablework table, means 'lor driving said table with a step by step movement,a plurality ot uniformly spaced work holders mounted on said tableI andadapted to rotatably support coiled springs in an upright position, areciprocating gripper carriage adapted to engage the bottom coils ot'the springs whereby they are partially uncoiled on the retractingmovement of the carriage, a cutter, means actuated by the rotation ofthe table for positioning the work relative to said cutter, and meansfor actuating said -cutter while the table is at rest.

34. In a structure of the class described, the combination of arotatable work table, means for driving said table with a step by stepmovement, a plurality of work holders mounted on said table and adaptedto rotatably support coiled springs in upright position, a reciprocatinggripper carriage adapted to engage the bottom coils of the springswhereby they are partially uncoiled on the retracting movement of thecarriage, a cutter supported for adjustment radially of said table,means for rotating the springs upon their holders to swing the uncoiledends thereof into said cutter, and means 'for actuating said table,carriage and cutter in synchronism.

35. In a structure of the class described, the combination of arotatable work holder, means for driving said table with a step by stepmovement, a plurality of work holders mounted on said table and adaptedto rotatably support coiled springs, a reciprocating gripper carriageadapted to engage end coils 'of the springs whereby they are partiallyuncoiled on the retracting movement of the carriage, and means foractuating said table and carriage in synchronism.

36. In a structure of the class described, t-he combination of alrotatable work table, means for driving said work table with a step bystep movement, Work holders mounted on said table and adapted torotatably support coiled springs in an upright position, a reciprocatinggripper carriage adapted to successively engage the bottom coils of thesprings whereby they are partially uncoiled on the retracting movementof the carriage, a cutter, means actuated by the rotation of the tablefor positioning the uncoiled ends of the springs in operative relationto the cutter, and a rotating brush positioned to engage the springswhen advanced from said cutter ejecting the same from said holder.

37. In a structure of the class described,

the combination of a rotatable work table, means for driving said worktable with a step by step movement, work holders mounted on said tableand adapted to rotatably support coiled springs, a reciprocating grippercarriage adapted to successively engage end coils oit the springs'whereby they are partially uncoiled on the retiacting` movement ot' thecarriage, a cutter, vand means actuated by the rotation of the table forpositioning the uncoiled ends of the springs in operative relation tothe cutter.

38. In a structure of the class described, the combination of arotatable work table, means for driving said work table with a step bystep movement, work holders mounted on said table and adapted torotatably support coiled springs, a reciprocating gripper carriagehavingautomatically acting gripping jaws adapted to successively engageend coils of the springs whereby they are partially uncoiled on theretraeting movement of the carriage and means for actuating said tableand carriage in synchronism.

39. In a structure of the class described,

the combination of a Work holder adapted to rotatably support coiledsprings, a reciprocating carriage having automatically acting grippingjaws adapted to engage an end coil of la spring mounted on said holderon the forward movement of the carriage whereby the Spring is partiallyuncoiled on the ietracting movement of the carriage7 and means forautomatically releasing said gripping Jaws.

In Witness whereof, I have hereunto Set my hand.

BERT L. VAN ORMAN. [La] K

